Carbureter.



Patented Sept. 23, I902.

A. M. ROSENBEBRY.

C A B B U R E T E R.

(Application fi led Dec. 2, 1901.

2 Sheets-Sheet I.

(No Model.)

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No. 709,647. Patented Sept. 23,1902.

A. M. ROSENBERRY.

CARBURETER:

. [Application filed Dec. 2, 1901.) (No Model.) 2 Sheets-$heefl 2.

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UNITED I STATES PATENT OFFICE.

ALVIN M. ROSENBERRY, OF SHELBY, OHIO, ASSIGNOR OF ONE-HALF TO MACK I-I.DAVIS, OF SHELBY, OHIO.

CARBUREMTER.

SPECIFICATION forming part of Letters Patent No. 709,647, datedSeptember 23, 1902.

Application filed December 2, 1901- Serial No. 84,404. (No model-Jmanufacturing fair-gas, the construction and advantages of which will behereinafter set forth, reference being had to the annexed drawings,wherein- Figure 1 is a side elevation, partly in section, of my improvedplant or apparatus; Fig. 2, a sectional view of the regulator; Fig. 3, atransverse sectional View on the line 2 2 of Fig. 2, and Fig. 4 a sideelevation showing in detail a portion of the device.

One object of my invention is to furnish an apparatus wherein air-gas ofa given or fixed quality may be produced in the exact quantity requiredfrom time to time.

A further object of the invention is to provide an apparatus wherein thegas will be manufactured only as required and the quantity of air passedthrough the carburetor will be proportionate to the feed of thehydrocarbon and to the consumption of the air-gas.

In the apparatus about to be described hydrocarbons of varying specificgravity may be employed at one and the same time, the device separatingthe different grades and bringing each into contact with a current ofair in succession, the heaviest grades being first exposed to the airand the lightest last exposed.

With the above objects or ends in view I have constructed an apparatusupon the lines of the accompanying drawings and hereinafter described indetail.

Referring to the drawings, A designates an air reservoir or receiver towhich air under pressure is supplied by a pipe B from any suitablesource. A pipe C extends from the air-space within the reservoir to thelower part of a cylindrical chamber or cylinder D. This cylinder is incommunication with a second and smaller cylinder E, the communicationbeing eifected through an opening F,

formed in the intervening wall between the cylinders. Within thecylinder D there is mounted a piston G, said piston being formed with arib or projection H upon one side thereof, the rib extendinginto theslot or passageway F, thereby serving to prevent rotation of the pistonwithin the cylinder. In other words, the rib acts as a guide for thepiston.

The piston-rod I, which is connected to the piston G, extends up througha suitable stufiing-box and in turn is connected to a bellcrank lever J,which is fulcrumed at K to an arm or bracket L, which is rigidly fixedto any suitable support. In the present instance it is shown asconnected to one of the pipes, which will be hereinafter referred to.

The outer end of the elbow-lever J is connected to the valve-stem of aneedle-valve M, which works in a pipe N, said pipe affordingcommunication between the hydrocarbon or gasolene tank 0 and the upperend of the carburetingchainber P.

From the description thus far given it will be seen that as the piston Gis moved up or down the valve M will be opened or closed, permitting orshutting off the flow of the gasolene or other hydrocarbon from thegasolene tank or reservoir to the carbureting apparatus proper.

To properly regulate the amount of air which passes from the cylinder Dthrough cylinder E, thence through pipe Q to the bottom of thecarburetingchamber, there is mounted within the cylinder E a cylindricalvalve R, open at its lower end and provided with a slot or opening S inits side wall of a length and width equal to the passage F. The valve Ris provided with a stem which extends outwardly through the head of thecylinder, the stem being squared, so that the valve may be turned tovary the position of the slot or opening S with reference to the slot orpassage-way F, thereby increasing or diminishing the size of the passagefrom the one cylinder to the other as may be desired. The amount ofopening is also regulated by the movement of the piston G. In theposition shown in full lines in Figs. 1 and 2 the piston is in itslowermost position and the passage of air prevented. It will also benoted upon reference to Fig. 1 that when the I I 77 A piston G is in itslowermost position the valve which controls the gasolene-supply islikewise closed. As the piston rises the valve is openedproportionately, so that the feed of gasolene is regulated according tothe volume of air which passes through the carbureter. The elevation ofthe piston and the consequent opening of the valve are dependent uponthe amount of gas or air-gas which is being withdrawn from thecarbureter. For instance, if but a small quantity is being used and buta small quantity being withdrawn from the carburetor the air-supply willbe in proportion to the amount of air-gas being consumed. Likewise thefeed of the gasolene will be in direct proportion to the volume of airpassing through the carbureter. When the consumption is stopped, thepressure in the carbureter and the air-tan k becomes equal ized and thepiston G drops to the bottom of the cylinder, shutting off any furtherair-supply and at the same time shutting off the feed of the gasolene orother hydrocarbon.

The carbureter which 1 have employed consists, essentially, ofacylindrical jacket or vessel, in which is mounted a series of pans ordisks a, inclining toward a central perforation b, formed therein.Mounted upon each of said pans is a frusto-conical member or deflector0, legs (1 being employed to elevate the deflector to a slight extentfrom the pans or disks.

As will be noted upon reference to Figs. 1 and 4, the under side of eachpan and each deflector is inclined, so that the pans and the said undersides or faces are parallel throughout. In this manner the air orair-gas which maybe passed between the two will be distributed equallyall around the deflector and pass up on all sides thereof.

Mounted upon the pan and over the deflector and at a slight distancetherefrom is a foraminous body T, preferably formed of wiregauze or thelike. Said body takes the general form of the deflector; but instead ofhaving a perfectly plain surface it is formed with a spiral groove orchannel which extends entirely around the same from the upper to thelower edge thereof.

The gasolene-feed pipe discharges directly over the uppermost foraminousbody and passes down around and through the same, coming in close andintimate contact with the air which is passed in through the pipe Q atthe lower end of the carbureting-chamber. Should the gasolene or otherhydrocarbon which is being used be of different or varying specificgravities, the heavier grades will find their way quickly to the lowerend of the carbureting-chamber or to the lowermost of the foraminousbodies. At this point it willcome into direct contact with the air whichhas not been charged with the hydrocarbon vapors. As a consequence theheavier grades will be taken up by this fresh air, and the lightergrades, which naturally remain in the upper portion of the carbureter,will be taken up by the partly-charged air, and a complete and stableair-gas will be formed.

By the formation of the spiral groove or channel in the foraminous bodythe gasolene is prevented from running directly to the bottom of theforaminous body. It is found that it will run around or follow the lineof the groove, channel, or depression and finally, if there be anyunevaporated, find its way to the disk or pan a and through the openingtherein to the uppermost portion of the foraminous body immediatelybelow. The air must of course take a circuitous or zigzag course oftravel from the bottom of the carbureter to the top thereof, passingthrough and about each of the foraminous bodies before it can reach theoutlet 6. To said outlet there is con nected a pipe f, which leads tothe point of consumption of the gas, and a second pipe 9, which extends.upwardly and opens into the upper portion of the gasolene-tank 0. Pipe 9serves to equalize the pressure in the apparatus, preventing thegasolene from being forced out of the tank, as well as preventing theexertion of any back pressure therein by the air coming in from thecarburetingchamber.

From the foregoing description it will be seen that the operation of theapparatus is automatic throughout and that immediately the consumptionis stopped the feed of gasolene to the carbureter and the air-supply isautomatically cut off. So, too, the amount of air which passes throughthe regulating apparatus to the carburetor and theamount of gasolenewhich is fed into the carbureter are directly proportionate to eachother and to the consumption. By turning or adjusting valve R thequantity of air which may pass through the openings G and S may-bedetermined and regulated according to the grade of gasolene or otherhydrocarbon being used. It is also to be noted that no heating device isemployed in connection with this apparatus, it being simply necessary inorder to insure the proper operation thereof to store up sufficient airin the tank or reservoir A. Otherwise the apparatus is automaticthroughout. There is no quantity of gas stored at any point, except thatslight amount which may be present in the carbureting-chamber.

The piston G may be termed a motor that is to say, it is actuated ormoved by the air passing to the carbureter when the pipe f is open andin so moving opens the air-supply between the reservoir A and thecarburetingchamber, at the same time actuating and regulating thegasolene-supply valve.

Should the air contain moisture, means must be provided for withdrawingit from the lower portion of the carbureting-chamber. The water will ofcourse settle to the bottom, and to dispose of it a float-valve 't' isprovided, the valve proper, j, opening through the lower portion of thecarbureting-chamber and permitting the water to escape when it reaches apredetermined level. Should excess of hydrocarbon be admitted to thecarburetingchamber,itwillalso escape through said valve.

Having thus described my invention, what I claim is-- 1. In combinationwit h a carbureting-chamher; a normally closed hydrocarbon feed leadingto said chamber; a suitable air-supply also communicating with thechamber; a valve for opening and closing the hydrocarbon-feed; and meansconnected to said valve and operated by the air passing to thecarbureting-chamber from the air-supply, said means opening and closingthe valve in proportion to theamount of air-gas withdrawn from thecarbureting-chamber.

2. In combination with a carbureting-chamher; a normally closedhydrocarbon feed leading to said chamber; a suitable air-supply alsocommunicating with the chamber; a valve for opening and closing thehydrocarbon-feed; and a motor located in the air-supply pipe andconnected to the valve, said motor serving to regulate the quantity ofair passing to the carbureting-chamber and to open and close thegasolene-feed valve in proportion to the amount of air-gas withdrawnfrom the carbureting-chamber.

3. In combination with a carburetirig-chamber; a normally closedhydrocarbon feed leading to said chamber; a suitable air-supply alsocommunicating with the chamber; a valve for opening and closing thehydrocarbon-feed; a motor located in the air-supply pipe and connectedto they valve, said motor serving to regulate the quantity of airpassing to the carbureting-chamber and to open and close thehydrocarbon-feed valve in proportion to the amount of air-gas withdrawnfrom the carbureting-chamber; and means for regulating the action of themotor.

4. In combination with a carbureting-chz tm ber;ahydrocarbon-feedleading to said chamber; a source of air-supply; a pipeconnecting said source of supply and the carburetingchamber; a cylinderlocated in said pipe; a

piston mounted within said cylinder and serv- 5. In combination With acarbureting-chamher; a hydrocarbon-feed leading to said chamb. Incombination with a carbureting-chamher; a hydrocarbon-feed leading tosaid chamber; a suitable air-supply also communicating with saidchamber; a valve for opening and closing the hydrocarbon-feed; meansconnected to said valve and operated by the air passing to thecarbureting-chamber from the air-supply, said means opening and clos ingthe valve in proportion to the amount of air-gas withdrawn from thecarburetingchamber; a series of dished disks or pans mounted in saidcarbureting-chamber, each provided with a central opening; a coneshapeddeflector mounted on said pans at a slight distance above the same; anda foraminous coneshaped member also mounted on the pansand standing at aslight distance from the deflector.

7. In combination with a carburetingchamber; m eansforsupplying gasoleneto the upper end thereof; means for supplying air to the lower endthereof; a series-of dished disks or plates mounted in said chamber,each plate being provided with a central opening or aperture; acone-shaped deflector mounted on each of said disks and ata slightdistance therefrom; and a foraminons body seated on each of said disksand surrounding the deflectors at a slight distance therefrom saidbodies being formed with a spiral channel or depression which extendsfrom the upper to the lower end thereof.

8. An evaporating-surface for hydrocarbon Vaporizers, comprising aforaminous body having a generally cone-shaped contour, with a spiralchannel or depression extending around the same from the upper end tothe lower edge thereof.

In testimony whereof I have signed my name tothis specification in thepresence of two subscribingwitnesses.

ALVIN M. ROSENBERRY.

W'itnesses:

'1. J. GREEN, V. O. Purses.

IOC

